Real math help.
What's a Rational Expression?
Note:
Got a fraction with a polynomial in the numerator and denominator? You have a rational expression! Learn about rational expressions in this tutorial.
Background Tutorials
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Evaluating Expressions
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What is a Variable?
You can't do algebra without working with variables, but variables can be confusing. If you've ever wondered what variables are, then this tutorial is for you!
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Simplifying Rational Expressions
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Why is it Called a Rational Expression?
Got a fraction with a polynomial in the numerator and denominator? You have a rational expression! Watch this tutorial and learn how to identify a rational expression.
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Simplifying Algebraic Fractions
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What's an Algebraic Fraction?
You'll likely to encounter algebraic fractions while learning about algebra, so it would be a good idea to know what they are. In this tutorial, you'll learn what kind of fractions are algebraic fractions. Check it out!
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Further Exploration
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Simplifying Rational Expressions
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How Do You Find Excluded Values?
Excluded values are values that will make the denominator of a fraction equal to 0. You can't divide by 0, so it's very important to find these excluded values when you're solving a rational expression. Follow along with this tutorial and learn how to find these excluded values!
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How Do You Divide Monomials Using the Greatest Common Factor?
Simplifying a rational expression? You could divide the numerator and denominator by the greatest common factor (GCF). In this tutorial, you'll learn what you need to do to simplify a rational expression by factoring out the GCF!
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Dividing Rational Expressions
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How Do You Divide Two Rational Expressions?
Dividing two rational expressions? Turn it into a multiplication problem by multiplying by the reciprocal of the second rational expression (the divisor)! This tutorial shows you how to do just that! Then, you'll see how to perform the multiplication and simplify to get you answer!
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